Will this be too much at once?

Depends. Since you're in this forum, I'm goin to assume you're applying for a nursing program. Depending on the admission on how you get accepted into the program such as GPA, I think it is too much. If getting into your program is based on ur GPA, you need all the A's you can get. In my opinion, you should drop the PCT or the thing at the hospital unless your admission for your nursing program requires you to have previous clinical experience which I don't because once you're admitted intone nursing program, you're goin to have to be in a real clinic anyway so it really isnt progressive. It's like wiping your butt before you go defecate. Anyways, I don't believe all classes are offered online such as microbiology and A&P 1&2. You will still need to attend the labs and learning those two subjects by yourself is difficult. Those are more visual classes rather than psychology or English.

Yeah, I am getting pre-req's done for nursing (ADN then plan to bridge to BSN after a little while). They have a summer course for the PCT so I will most likely do it then. Since most hospitals around here won't hire without experience unless you already work at the hospital (and the hospital I am dying to work at when I am done with school is the one offering the class). So the PCT class will be a gateway to a nursing job there. Thanks for your advice, I'll most likely take it in the July-August class so it won't interfere with my classes/GPA!